The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2019
Filed:
Jan. 30, 2017
Varian Semiconductor Equipment Associates, Inc., Gloucester, MA (US);
Scott W. Nickerson, Plaistow, NH (US);
Charles L. Stanley, Amesbury, MA (US);
David Morrell, Wakefield, MA (US);
Semaan Fersan, Hamilton, MA (US);
Saeed Jazebi, Peabody, MA (US);
George Emmanuel, Peabody, MA (US);
VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC., Gloucester, MA (US);
Abstract
Embodiments of the disclosure provide a current protection device for a fault current limiter, the current protection device including a detection circuit electrically coupled between a current transformer and a pneumatic timer, and an electrical vacuum interrupter (EVI) coupled to a pneumatic cylinder. In some embodiments, the EVI includes a set of breaker contacts, wherein the pneumatic timer is communicatively coupled with the pneumatic cylinder to actuate a moveable contact of the set of breaker contacts. In some embodiments, the detection circuit is configured to detect a current of the current transformer, and to provide a control signal to the pneumatic cylinder to open or close the set of breaker contacts based on the detected current.